I have a problem with a simple query that takes more than 30 second to complete. The query is a simple "SELECT" from a single table and the resultset contains 64 rows.
Im not sure why it takes so long because the query is simple and the execution plan dont show any issues.

I checked the Sql Server log and found this message multiple times:
"A significant part of sql server process memory has been paged out. This may result in a performance degradation. Duration: 0 seconds. Working set (KB): 1142644, committed (KB): 2241136, memory utilization: 50%".
So i checked the memory usage of the Sql Server process while the query is running and it increases from ~400MB to ~1.5GB. It seems that the OS started paging and slows down everything.
But why?

I have to mention that the varchar columns of the table uses the collation Latin1_General_100_CI_AI_SC_UTF8. When i switch the collation to Latin1_General_100_CI_AI_SC it runs without  any problems.

Is this a encoding bug in the SQL Server 2019? Can anyone else reproduce this or can explain me what is going on?

What i used:

• SQL Server 2019, SELECT @@Version:  Microsoft SQL Server 2019 (RTM-CU5) (KB4552255) - 15.0.4043.16 (X64)   Jun 10 2020 18:25:25   Copyright (C) 2019 Microsoft Corporation  Standard Edition (64-bit) on Windows Server 2019 Standard 10.0 <X64> (Build 17763: ) (Hypervisor)
• ODBC Driver 64-bit, 2017.175.02.01
• Microsoft SQL Management Studio v18.5, 15.0.18330.0

The query

SELECT
[ID] AS [ID]
,[Column1]
,[Column2]
,[Column3]
,[Column4]
,[Column5]
,[Column6]
,[Column7]
,[Column8]
FROM [dbo].[MyTable]
WHERE [ID] IN (3,7,8,9,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81)

The table

SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
CREATE TABLE [dbo].[MyTable](
	[ID] [int] NOT NULL,
	[Column1] [varchar](250) COLLATE Latin1_General_100_CI_AI_SC_UTF8 NULL,
	[Column2] [varchar](36) COLLATE Latin1_General_100_CI_AI_SC_UTF8 NULL,
	[Column3] [int] NULL,
	[Column4] [int] NULL,
	[Column5] [int] NULL,
	[Column6] [varchar](250) COLLATE Latin1_General_100_CI_AI_SC_UTF8 NULL,
	[Column7] [varchar](250) COLLATE Latin1_General_100_CI_AI_SC_UTF8 NULL,
	[Column8] [int] NULL,
 CONSTRAINT [PK_MyTable] PRIMARY KEY CLUSTERED 
(
	[ID] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON, OPTIMIZE_FOR_SEQUENTIAL_KEY = OFF) ON [PRIMARY]
) ON [PRIMARY]
GO

The data

INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (3, N'ABC', N'abc', 1226, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (7, N'ABC', N'abc', 1226, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (8, N'ABC', N'abc', 1226, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (9, N'ABC', N'abc', 1226, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (11, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (12, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (13, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (14, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (15, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (16, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (17, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (18, N'ABC', N'abc', 1227, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (19, N'ABC', N'abc', 1227, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (20, N'ABC', N'abc', 1227, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (21, N'ABC', N'abc', 1227, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (22, N'ABC', N'abc', 1229, 6142, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (23, N'ABC', N'abc', 1257, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (24, N'ABC', N'abc', 1257, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (25, N'ABC', N'abc', 1257, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (26, N'ABC', N'abc', 1257, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (27, N'ABC', N'abc', 1230, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (28, N'ABC', N'abc', 1230, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (29, N'ABC', N'abc', 1230, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (30, N'ABC', N'abc', 1230, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (31, N'ABC', N'abc', 1231, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (32, N'ABC', N'abc', 1231, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (33, N'ABC', N'abc', 1231, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (34, N'ABC', N'abc', 1231, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (35, N'ABC', N'abc', 1233, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (36, N'ABC', N'abc', 1233, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (37, N'ABC', N'abc', 1233, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (38, N'ABC', N'abc', 1233, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (39, N'ABC', N'abc', 1232, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (40, N'ABC', N'abc', 1232, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (41, N'ABC', N'abc', 1232, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (42, N'ABC', N'abc', 1232, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (43, N'ABC', N'abc', 1228, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (44, N'ABC', N'abc', 1228, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (45, N'ABC', N'abc', 1228, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (46, N'ABC', N'abc', 1228, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (47, N'ABC', N'abc', 1227, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (48, N'ABC', N'abc', 1227, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (49, N'ABC', N'abc', 1227, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (50, N'ABC', N'abc', 1227, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (51, N'ABC', N'abc', 1227, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (52, N'ABC', N'abc', 1227, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (53, N'ABC', N'abc', 1227, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (64, N'ABC', N'abc', 1257, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (65, N'ABC', N'abc', 1257, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (66, N'ABC', N'abc', 1257, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (67, N'ABC', N'abc', 1257, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (68, N'ABC', N'abc', 1257, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (69, N'ABC', N'abc', 1257, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (70, N'ABC', N'abc', 1257, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (71, N'ABC', N'abc', 1226, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (72, N'ABC', N'abc', 1226, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (73, N'ABC', N'abc', 1226, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (74, N'ABC', N'abc', 1226, 6605, 1, N'abc', NULL, 1)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (75, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (76, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (77, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (78, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (79, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (80, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)
INSERT [dbo].[MyTable] ([ID], [Column1], [Column2], [Column3], [Column4], [Column5], [Column6], [Column7], [Column8]) VALUES (81, N'ABC', N'abc', 1226, 6103, 1, N'abc', NULL, 4)

Hello all,

Do you know when is the release date of the SQL Server 2020 (Also named SQL2020 and SQL Server 16.0 (?))?

We need to work on the planning for verification testing with SQL2020.

Thank you!

- Trang

Hi all,

I am using sql server 2017, and I was trying to optimize a query that runs slowly. Surfing some blogs, I came across query hints and used this one:

option(use hint('DISABLE_OPTIMIZED_NESTED_LOOP'), maxdop 1);

Unfortunately, what happened is now the query runs even slower, and I couldn't figure out how to reverse the effect of this hint.

My questions would be:

1- Does this hint affect other users and their queries too ?? 

2- How to restore the query optimizer to its default settings ??

I appreciate you help in this matter.

Best Regards

Greetings. I recently moved a DB that holds DBA service account passwords from a 2012 instance to 2019. The passwords are encrypted using column level encryption. When I run a sproc to decrypt the password and return the unencrypted value all is well. However,  when I insert new data into the table the password into the table it gets stored as a NULL value. 

Google tells me the two main reasons for this are 1) The symmetric key is not open. We're running a sproc that handles this, and that didn't change between versions. 2) ansi_padding being off. As such I did a "set ansi_padding on alter table foo alter column foo" and that didn't fix it either. 

I should note that the migration itself wasn't the smoothest, and those woes can be found here. However, I have the luxury of simply "rebuilding" this encryption column if needed. The table is tiny and I'm the only FTE that uses it, all I care about is resolving the issue. 

Ideas?

Thanks in advance! ChrisRDBA

https://docs.microsoft.com/en-us/sql/relational-databases/polybase/configure-scale-out-groups-windows?view=sql-server-ver15

when I come accross the above DOC, and just wondering if the scale out ability can be benefit/enabled for all the external data source destination ? Here mention HDFS/Blob.  what about Oracle/SQLServer/ODBC.......

May I know if the following 

Queries with forced plans ,queries with high variance are available on SQL Server 2016, however require much update SSMS to view ?

And the Query wait stats are from SQL Server 2017 ?

I have a postgres db and would like to convert to SQL Express or standard edition.  Is there a conversion or migration tool available?

I can dump the postgres db to a sql file but MS has slightly different syntax and datatypes so I have to go in a manually modify the sql file for every table and data type.  Is there an easier way?  Thanks!

What's the difference between the following ?

What actual objects are persisted under the hidden database "resourcedb"

If we set the database recovery option to bulk-logged before Rebuilding index, in-case during the rebuild index the system crash . 

the rebuild index operation will be ROLLBACK ?

is there any way to  make sure if the extent allocation (64KB) are continuously allocated (uniform extents) on the physical disk? 

Pre allocate the data files size can do that ?

what's the differences between the following locks ?

are there any calculation for column avg_fragmentation_in_percent ?

So avg_fragment_size_in_pages = Page_count/fragment_count.  

I am having a SQL Server 2016 instance , and I found that update statistics with sample 10 percent not always works for small tables. 

for example I have a table have 10000 rows , and update stats with sample 10 percent. Using dbcc show_statistics doesn't return sample 1000 rows. 

For bigger table (larger than 1M and more) , this seems work . 

Are there any threshold that SQL Engine will ignore the update stats with sample ?

Hello,

In my SQL instance I  have 1 TempDB mdf and 7 ndf files which all grew to 63 gb and filled up the 500 gb drive.

I got permission to reboot server, however, TempDB files did not shrink.

What should I do?

I have the following 2 xevent, and I am just wondering how to query it using TSQL ?

CREATE EVENT SESSION [audit_login] ON SERVER 
ADD EVENT sqlserver.error_reported(
    ACTION(sqlserver.client_app_name,sqlserver.client_hostname,sqlserver.database_id,sqlserver.database_name,sqlserver.nt_username,sqlserver.session_id,sqlserver.session_nt_username,sqlserver.sql_text)
    WHERE ([package0].[equal_int64]([severity],(14)) AND [package0].[equal_int64]([error_number],(18456)) AND [package0].[greater_than_int64]([state],(1)) OR [package0].[equal_int64]([error_number],(18470)))),
ADD EVENT sqlserver.login(
    ACTION(sqlserver.client_app_name,sqlserver.client_hostname,sqlserver.database_id,sqlserver.database_name,sqlserver.nt_username,sqlserver.session_id))
ADD TARGET package0.event_file(SET filename=N'H:\db_audit\audit_login.xel',max_rollover_files=(30))
WITH (MAX_MEMORY=4096 KB,EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS,MAX_DISPATCH_LATENCY=30 SECONDS,MAX_EVENT_SIZE=0 KB,MEMORY_PARTITION_MODE=NONE,TRACK_CAUSALITY=OFF,STARTUP_STATE=ON)
GO




CREATE EVENT SESSION [audit_dba] ON SERVER 
ADD EVENT sqlserver.sql_statement_completed(SET collect_statement=(1)
    ACTION(sqlserver.client_app_name,sqlserver.client_hostname,sqlserver.database_id,sqlserver.database_name,sqlserver.nt_username,sqlserver.session_id,sqlserver.sql_text)
    WHERE ([sqlserver].[equal_i_sql_unicode_string]([sqlserver].[nt_user],N'user1') OR [sqlserver].[equal_i_sql_unicode_string]([sqlserver].[nt_user],N'user2')))
ADD TARGET package0.event_file(SET filename=N'H:\db_audit\audit_dba.xel',max_rollover_files=(30))
WITH (MAX_MEMORY=4096 KB,EVENT_RETENTION_MODE=ALLOW_SINGLE_EVENT_LOSS,MAX_DISPATCH_LATENCY=30 SECONDS,MAX_EVENT_SIZE=0 KB,MEMORY_PARTITION_MODE=NONE,TRACK_CAUSALITY=OFF,STARTUP_STATE=ON)
GO

hi we are running 2014 enterprise and the following alter command doesnt seem to work...i tried rowversion also.  I know i've done something similar before but on later versions of sql most likely.

ALTER TABLE  mytable  ADD [RV] timestamp, RVcast bigint DEFAULT (CONVERT([bigint],[RV]))

i get the following error

Msg 128, Level 15, State 1, Line 1